Wan Ahmad Syahril Rozli WAN ALI (2015) “A Cross Sectional Study of Cardiopulmonary Complications and Severity of Pulmonary Hypertension and Lung Fibrosis in Patients With Systemic Sclerosis”, Archives of Rheumatology, 30(4), pp. 311–318. doi: 10.5606/ArchRheumatol.2015.5593.